Seeing the Invisible Students will be instructed to make an observation of a flower (tulip) given the one stipulation that they will only be allowed to detect the parts of the plant that are green. Through observation and discussion, students will be led to understand that only seeing parts of the flower leads to an incomplete and even inaccurate understanding of its structure.
Students will construct their own knowledge of the Sun emitting light above and below the visible spectrum by using UV beads to detect ultrAuthor(s): No creator set

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Soil Science and Technology Home Page This site looks at soil fertility, nitrogen in soil, soil chemistry, soils as electrical systems, soils as filters, soil physics and particle sizes (silt, sand, and clay), microorganisms in soil, nutrients that plants need, soil morphology, judging soil by feel, structures and shapes of soil, and soil profile images from Arizona, Florida, Michigan, and other states. Learn how soil is formed and how long it takes to create an inch of soil.Author(s): No creator set

Infrared Astronomy Tutorial examines infrared light, how it was discovered, infrared astronomy, atmospheric windows, and more. An infrared astronomy timeline is included, along with links to news and discoveries, images, and classroom activities.Author(s): No creator set

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Searching for Meteorites Water balloons filled with flour and pebbles help students model the distribution of materials after meteorite impacts. The flour simulates the ejected crater material and the pebbles represent the meteorite fragments. Students will use the model to draw conclusions about where it would be easiest to find
meteorites.Author(s): No creator set

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The Age of Einstein The Age of Einstein, is a brief introduction to Einstein's Theories of Special and General Relativity. It is a book for the inquisitive general reader who wishes to gain an understanding of the key ideas put forward by the greatest scientist of the 20th-century. No more than a modest grasp of High School Mathematics is required to follow the arguments.Author(s): No creator set

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Online Statistics: An Interactive Multimedia Course of Study Online Statistics: An Interactive Multimedia Course of Study is an introductory-level statistics book. The material is presented both as a standard textbook and as a multimedia presentation. The book features interactive demonstrations and simulations, case studies, and an analysis lab.Author(s): No creator set

Resources on Alaska History and Politics This National Park Service website offers links to a variety of articles about the history and politics of Alaska. Users can download PDF articles about World War II in Alaska, the Alaska Goldrush, and national historic places. The site also features links to educational resources such as teachers' guides to teaching about historic places and culture.Author(s): No creator set

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The American Variety Stage: Vaudeville and Popular Entertainment, 1870-1920 This is a multimedia anthology illustrating the vibrant and diverse forms of popular entertainment, especially vaudeville, that thrived from 1870-1920. Included are 334 English- and Yiddish-language playscripts, 146 theater playbills and programs, 61 motion pictures, 10 sound recordings and 143 photographs and 29 memorabilia items documenting the life and career of Harry Houdini.Author(s): No creator set

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Creatures that "glow" in the night This Wisconsin Center for Environmental Education activity (PDF) encourages students to practice experimental design and scientific writing through the study of bioluminescence. Students observe and experiment with bioluminescent dinoflagellates (Pyrocystis fusiformis), learning how and why they produce light. The activity includes information for teacher preparation, an introduction to bioluminescence, defined vocabulary terms, a list of necessary materials, procedure, assessment questions, andAuthor(s): No creator set

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Blogging: an introduction Weblogs, or "blogs" for short, have many uses in education, as tools for publication, research, administration, and more.Author(s): No creator set

Calisphere Themed Collection - 1780-1880: California in Transition: Early California Exploration and California has always been a place of cultural interaction. Early California evolved and changed with each new group of settlers. These images depict the developing interconnectedness of California's early cultures. They also underscore the importance of movement and later settlement of peoples in California. Some of the modern images underscore the contested and often romanticized nature of California’s Spanish and Mexican heritage. This is a collection of primary source images.Author(s): No creator set

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Butterfly pupa anatomy The pupa is the third stage of the butterfly's life cycle. The caterpillar creates a pupa, sometimes called a chrysalis, and emerges as the adult butterfly after metamorphosis. The butterfly's wings will be used for flying.Author(s): No creator set

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Blood flow of moving Lumbriculus Observe blood flow and muscle contractions in each body segment of Lumbriculus variegates (note how blood flows in relation to the worm turning in the capillary tube).Author(s): No creator set